Assignee

KATSUMURA TATSURO

JP·1 granted patent·3 citations·filing 2012–2012

Technology mixB21C1 B21D1 G06F1

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0172US9707614B2Tube expanding method for manufacturing metal tubeKATSUMURA TATSURO·Filed 2012·Granted Jul 18, 2017·3 cites·8 claims

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